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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

2-Imidazolidinone (Ethyleneurea) | CAS 120-93-4

A cyclic urea used in resin chemistry and formaldehyde-scavenging formulations, with active content and water balance determined by the selected solid or solution grade.

CAS120-93-4
Molecular formulaC3H6N2O
Molecular weight86.09 g/mol

Product overview

Ethyleneurea closes the urea group into a five-membered ring and retains two nitrogen–hydrogen sites. It is the unmodified cyclic urea, distinct from methylolated finishing resins derived from it. The key purchasing distinction is often physical presentation: solid material and an aqueous ethyleneurea solution require different assay bases, water balances and formulation calculations.

Chemical identity

Chemical name
2-Imidazolidinone (Ethyleneurea)
CAS number
120-93-4
Molecular formula
C3H6N2O
Molecular weight
86.09 g/mol

Application context

Ethyleneurea solutions are used to prepare dimethylol ethyleneurea resins and to scavenge formaldehyde in resin systems, including phenolic, melamine and urea-formaldehyde formulations. Its contribution must be assessed within the specific resin composition and curing process. For textile, coating or construction formulations, request active-content data and evaluate any relevant residual-formaldehyde criterion on the resulting system rather than assuming a universal reduction level.

Chemistry and synthetic role

The two N-H positions of the cyclic urea provide sites for reactions involved in methylolation and resin modification.

Quality review

Solid or solution

State the required presentation and calculate additions on an agreed ethyleneurea-content basis.

Unmodified chemical identity

Distinguish ethyleneurea from dimethylol derivatives or blended finishing agents.

Matrix-relevant evaluation

Agree water, insoluble matter and any formaldehyde test needed for the intended resin system.

Preparing a specification

Specify solid or aqueous presentation, ethyleneurea assay, water or solids content, and resin-specific insoluble-matter or analytical requirements.

Packaging and storage

Confirm container compatibility, closure and net weight for the selected grade and destination. Follow the actual supplier SDS and batch label for storage and transport.

Documentation

Request the batch COA, SDS and analytical methods covering the agreed purchasing specification. Confirm which supporting chromatograms and application-specific records are available from the selected manufacturer.

Procurement questions

Is ethyleneurea already a textile finishing resin?

It is a cyclic urea raw material; its methylolated derivatives and formulated finishes are separate products.

Can a solution replace solid material by equal mass?

Only after accounting for active ethyleneurea content and added water.

Does it guarantee a fixed formaldehyde reduction?

The result depends on the resin, dosage and process conditions.

Technical sources
  1. PubChem CAS identity lookupNCBI / PubChem
  2. StarChem EU-50StarChem
  3. EthyleneureaPubChem